Toro 74901 Z Master 5000 - Engine Maintenance Procedures; Spark Plug Inspection

G008803
Figure53
5.Installthelefthandhydraulicunitshroud(Figure52).
CheckingtheSparkPlug
Important:Nevercleanthesparkplug(s).Always
replacethesparkplug(s)whenithas:ablackcoating,
wornelectrodes,anoilylm,orcracks.
Ifyouseelightbrownorgrayontheinsulator,theengineis
operatingproperly.Ablackcoatingontheinsulatorusually
meanstheaircleanerisdirty.
Setthegapto0.030inches(0.76mm).
G008794
1
2
Figure54
InstallingtheSparkPlug
Tightenthesparkplug(s)to18-22ft.-lb(24.4–29.8N-m).
3
2
1
G015200
Figure55
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